I do not disagree with you about orphanages. It would undoubtedly be best for children to be raised by loving parents in stable homes. But if orphanages are necessary, it is entirely right to insist that they be operated in the best possible way for the children they serve.
The same is true of the public schools. Perhaps someday all parents will homeschool their children. However, that day has not yet arrived. So long as we continue to spend money on the public schools, we taxpayers have every right to insist that the schools be operated in the best possible way for the children they serve.
we taxpayers have every right to insist
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You have every right to insist. Then see how much good it will do.